2011011001009 has 2 divisors, whose sum is σ = 2011011001010. Its totient is φ = 2011011001008.

The previous prime is 2011011000991. The next prime is 2011011001019. The reversal of 2011011001009 is 9001001101102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1815023283984 + 195987717025 = 1347228^2 + 442705^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011011001009 - 2¹³ = 2011010992817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011011000983 and 2011011001001.

It is not a weakly prime, because it can be changed into another prime (2011011001019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005505500504 + 1005505500505.

It is an arithmetic number, because the mean of its divisors is an integer number (1005505500505).

Almost surely, 2^{2011011001009} is an apocalyptic number.

It is an amenable number.

2011011001009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011011001009 is an equidigital number, since it uses as much as digits as its factorization.

2011011001009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 16.

The spelling of 2011011001009 in words is "two trillion, eleven billion, eleven million, one thousand, nine".